Ventilating device for the interior of closed car bodies



Dec. 15, 1931, w. SILBERMANN VENTILATING DEVICE FOR THE INTERIOR OFCLOSED CAR BODIES WIIII'I'SIIJCMHIIIL Patented Dec. 15, 1931 UNITEDSTATES WALTER SDI-3W, F KASSEL- EARLESHAUSEN, GERMANY VEbl'TII-ATINGDEVICE FOR THE INTEBIOBOF CLOSED GAB BODIES Application fled June 20,1928, Serial No. 872,857, and in Germany April 15,

The problem of ventilating the interior of closed car bodies, especiallysuch of motor cars, autobusses, dining cars and the like, has up to nownot been solved in an actually satisfying manner; only circumstantialand sometimes annoying expediencies have been brought forth. Matters areparticularly bad as re ards the ventilation of small motor cars uringthe drive, in that opening one of the windows even only a little givesrise to a very disagreeable, as well as dangerous draught.

The present invention relates to a ver practical solution of the problemstated. t

consists of a bent tube which is supported in one of the walls of thecar body and is turnable therein, and is enlarged at its outer end so asto resemble a ho per. This enlarged end, or the hopper, can turnedrearwardly during the drive so that the outer air exerts a suckin actionupon said tube and, thus, also upon t e interior of the closed car body,but, also another position of that ventilation tube may be chosen. Atthe inner end of the ven- 85 tilation tube is a small hand wheel forturning it and also means for fixing the tube in its ad'usted positionare rovided.

enerally, said ventilation tube terminates in the interior of the carpractically at the so inner surface of the respective wall, it beingunderstood that there are rovided the means for turning the tube an forfixing it in its position, but it is also possible to extend t e tubeinwardly and bend this end counter to the outer end, the entire tuberesembling then somewhat an S. This inner and may be directed forwardly,and itsend may also be enlarged so as to resemble a hopper. like theouter tubeend. If such an inner extension of the ventilation tube isprovided,

a separate hand wheel for turning the tube may be dispensed with.

The invention is illustrated diagrammatically and by way of example onthe accompanying drawingsin which Figure 1 is a perspective illustrationof a ventilating device designed according to this invention, and

Figure 2 is a plan of the same, partly in section.

On the drawings, 1 denotes a side-wall of the car body, and 2'is a bentouter tube which is enlarged at its end so as to form a kind of hopper3. 5 denotes the annular place of junction between the parts 2 and 3.The side-wall is in this example that on the right side of the car bodyand the tube is directed counter to the direction of the drive at thetime being. The tube may, however, be turned by any desired number ofdegrees, even by 180, so that its position is completely reversed. Thereis in this example a. bent tube 4 with a hopper 15 provided also withinthe car body and directed counter to the tube 2 with its hopper 3. Thetwo tubes may be rigidly connected with one another so as to besimultaneously turnable, but, if preferred, each may e separatelyturnable. This is the case in the example shown:

When the hopper is in the position shown in Fig. 1, in w 10h case thecar is running counter to the direction indicated by the arrow P, thatis to say, the air is passirig along the car in the direction of thearrow air is entering into the hopper 3 through said aperture 5 andwithdraws air from the interior of the closed car body through the tube2, or through the tubes 2 and t respectively.

. For the purpose of turning the outer ventilationtube a hand-wheel 6 isprovided inside 8 the car body. It is connected with a flange 7 of saidtube, and in the rim of this flange are provided recesses 8 whichco-operate with a lug 11 projecting forth from a lever 10 subjected tothe action of a tension spring 9, as 8 shown in Fig. 1.

The inner tube 4 is provided with a collar 16 having recesses 12co-operating with a lug 14 of a lever 13 which is also subjected to theaction of said spring. This latter is at- 'tached at one of its ends tothe lever 10 and at the other end to the lever 13.

I wish it to be understood that I do not limit myself to the details ofthe ventilation devicefespecially as regards the means for 9! fixing theone or the other tube in its adjusted position. It is also notindispensably requisite that the outer ventilation tube or the inner oneare bent ffithe manner shown in the drawings merely by way of example.If preferrecl, the one or the other tube or both may be straight, and itis also possible to provide means, for instance a valve of any suitabletype, or a slide or a cock, by which the communication between theinterior of the car body and the outer air can be completelyinterrupted. Finally, the device may be attached to any one of the sidesof the car body, or to the rear Wall, or to the top, as desired orpreferred.

I claim:

1. A ventilating device for the interior of closed car bodies,comprising, in combination with any of the lateral car body Walls and ano enin in the same an annular'member insorted into said opening andfixed .to the respective wall; a tube, one end of which is turnablylocated in said annular member and the body portion of which is so bentthat its other end extends practically parallel to that wall outside thesame; an adjustable hand Wheel secured to the inner end of said tube;means for fixing said Wheel in its adjusted p0 sition tube, one end ofwhich is turnably coupled with the inner end oi the firstmentioned to isso bent that its other end extends practio lly parallel to the said carbody wall in- 1 the car; and means for fixing said other T in itsadjusted position. 2. A ventilating device for the interior of closedcar bodies, comprising, in combination with any of the lateral car bodywallsand an opening in the same, an annular member insorted into saidopening and fixed to the respective Wall; a tube, one end of which isturnshly located in said annular member and body portion of which is sobent that its other end extends well outside the same; an adjustablehand Wheel secured to the end of said tube; means for fixing said Wheelin its adjusted position; another tube, one end of which is turnablycoupled with the inner end of the first-mentioned tube and the bodyportion of which is so bent that its other end extends practicallyparallel to the said car body wall inside the car; an adjusting flangeafiixed to said other tube in front or said hand Wheel and having"recesses in lever supported inside flange; another hand lever alsosupported inside the car body near said adjusting flange; and aprojection provided at said other hand lever in such a position as to beable to engage the recesses of the said adjusting flange,

3. A ventilating device for the interior of closed car bodies,comprising, in combination with any or" the lateral car body Walls andan opening in thesame, an annular member inserted into said opening andfixed t0 the respective Wall; a tube, one end of Which'is turnablylocated in said annular member and the body portion of which is so bentthat its ")8 and the body portion of Which practically parallel to that7 its periphery; a hand the car body near said Wall outside the same; anadjustable hand Wheel secured to the inner end of said tube; means forfixing said wheel in its adjusted position; another tube, one end ofwhich is turnably coupled with the inner end of the first-mentioned tubeand the body portion of which is so bent that its other end e-Xtendspractically parallel to-the said'earfbody x all inside the car; anadjustin flange affixed to said other tube in front 0 said hand Wheeland having recessesin its peri hery; a hand lever supported inside thecar body near said flange; another hand lever also"supported inside thecar body near said adjustingflange and extending parallel'to thefirstinr'itioned hand lever at the op osite sideofthes aid hand-wheel; and ahell necting the said two levers substantially as set forth. v

In testimony whereof I afiix mvsignature.

WA LTER sIL asv 'cal tensile spring conv t nean fi eo

